MacBook Pro to Micro HDMI-SDI to SDI-HDMI to Sony LED TV

MacBook Pro to Micro HDMI-SDI to SDI-HDMI to Sony LED TV

Hi. I'm a new user and thought this would be simple and straightforward.

I'm running a MacBook Pro, Retina, Early 2015 on El Capitan 10.11.6.

Just purchased the MICRO HDMI to SDI AND MICRO SDI to HDMI converters from Blackmagic.

I've connected these with an HDMI cable to each component. I'm using a 100Ft SDI cable to connect the two converters. I have downloaded and run the firmware updates... I've double checked the order of all these components. I've also messed around with all the variations I can find on my computer.